/**********************************************************************\

 Copyright 2012 Diggory Blake

 This file is part of klip-engine

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.

\**********************************************************************/

#include "kstream.h"
#include "kdata.h"
#include <string.h>

bool kStream::match(const kDataView& data) {
	static const size_t blockSize = 64;

	uint8_t v[blockSize];

	for (size_t i = 0; i < data.size; i += blockSize) {
		size_t s = std::min(blockSize, data.size - i);
		if (read(kData(v, s)) < s)
			return false;

		if (memcmp(v, data.ptr + i, s)) {
			skip(keSeek_Read, data.size-i-s);
			return false;
		}
	}

	return true;
}
